package com.example.bookseckill.schedule;

import com.example.bookseckill.service.SeckillService;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;

/**
 * 秒杀定时上架
 */
//@Service
@Slf4j
    @RestController
@RequestMapping("/start")
public class SeckillScheduled {
    @Resource
    private SeckillService seckillService;
    @Resource
    private RedissonClient redissonClient;
    //秒杀上架功能的锁
    private final String upload_lock ="seckill:upload:lock";

    //保证幂等性问题
//    @Scheduled(cron = "*/5 * * * * ?")
    @GetMapping("/time")
    public void uploadSeckillSkuLatest3Days(){
        //1.重复上架无需处理
        log.info("上架秒杀的商品。。。。");
        //分布式锁
        RLock lock = redissonClient.getLock(upload_lock);
        try {
            //加锁
            lock.lock(10, TimeUnit.SECONDS);
            seckillService.uploadSeckillSkuLatest3Days();
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }
}
